What is the air quality trend in Annapolis?

Over the past 8 days, Annapolis had an average AQI of 77 based on station measurements. The worst day was 2026-07-17 with AQI 168.

How is Annapolis air quality measured?

Air quality in Annapolis is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Annapolis, United States

Name: Annapolis Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Annapolis, United States.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	21	16–28	5.1 µg/m³	6h	26
2026-07-21	53	28–75	14.6 µg/m³	24h	27
2026-07-20	66	39–80	19.5 µg/m³	24h	27
2026-07-19	62	38–93	17.8 µg/m³	24h	29
2026-07-18	131	59–156	49.7 µg/m³	23h	29
2026-07-17	168	77–227	97.6 µg/m³	24h	30
2026-07-16	67	29–107	19.8 µg/m³	24h	28
2026-07-15	51	37–57	12.6 µg/m³	17h	29

Back to Annapolis Air Quality